tucker



' through thc line T l. y The dottedlne L L indicates the plane of the ves-r sels bottom.

antesala d13Eniinrnv'w. 'TUcKEa or BROOKLYN, NEW YORK.

Leners' Patent No; 100,820, camz March 15, 1870.

u Y IMPROVEMIE'IN'T IN PADDLE-WHESLS.

The Schedule4 referred `to in these Letters Patent and making. part of the same.

I, emmers W. TUCKER, of are @ay 0f Brooklyn, in the State Yof New York, have invented a new and `useful and'improved Submerged P addIe-Wheeh of whichthe following is a specification.

YNature and4 Objects of the Intention. My invention relates to providing 4each bilgc of a vessel with a diskn of requisite proportions, having teeth or projections on its periphery which incline outward atan angle of about thirty-seven degrees from the base of one to the point of another, thence vertically inward to `thefperipheryof the disk. The vertical edgesof these projections are in the lilies ofthe radii, fromthe common centcron which the disk. revolves. To these edges are attached, at their lateral centers, buckets or paddlesftlle ends of wllich are secured on both sides to hollow vertical disks or rims This larrangement .is` rigidly hung upon a shaft t-hrongh its center, which works in water-tight aper 4 tures in the center of the casing.I Vlhe disk and attached buckets are encased -in a water-tight compartment, the snperfices of which conform to the spaces illwhich `the diskI and `.buckets revolve, its intelior being sniliciently large to allow the disk. and buckets 4 to revolve freely. There is, however, a segment re moved from its llnder side, `and the compartment is so attached to thevessel that the cord of the segment ot' the part cnt off is ilush with the vessels bottom, below the plane of which the paddles 'and rims project. A,

The water-tight compartment being attached to thevessel in such mannen that the lips or edges of the horizontal part thereof is flush with the vessels bottom, thecompartment becomes filled with water,

which is confined therein, aud the wheel, consistingI `of the disk and buckets is submerged upon power being applied to the crank or shaft to whicll the disk is rigidly secured. 1t revolves, bringing the surfaces of the buckets successvelyin cont-act with the water below the planeof the 'l'essels bottom, thereby propellillg it. l

Description of the Accompanying Drawings. Figure 1` is avertical section of the'invelltion,

Y Figure2 is a top view of the invention, with 'the upper half of the water-tight easing removed.

General Description.

B is nl@ disk rigidly attached@ the Sina a, and

provided with the teeth or projections al, to the vert-i- .cal edges of which are attached the buckets Z.

fare ,the rims or verticalhollowdisks to which the lateral edges of the buckets are secured. C is the space within which 'the disk revolves, and

k are the exterior circlllar recesses of similar diamveterto that of the disk B, whichare enlarged into the circular hollow shoulders s, in which the buckets z'rcvolve. l D is the exterior of the water-tight compartment in'wllich the wheel revolves.

L L is the dotted line indicating the plane' of the vessels bottom.

To operate theinvcntion, the bilges of the vessel are each provided with openings through the bottom of the vessel ofl a sizecorresponding to the part of the device from which the segment of the watertight compartment has been cut out, which open part is placed directly over the aperture, and securely fastcned in such position in such manner as to prevent the ingress ot` water, as shown in fig. 1.

By this `arrangement the buckets exposed bythe cutting out of the said portion of the casing are below vthe line L L, and consequently in contact with the water which has filled the colnpartment, tllus submerging the wlleel within.

Upon power being applied at the crallk a the diskB is revolved, thus bringing the buckets z successively in contact with the water below the line L L, and propelling the vessel.

The compartment D may be provided with a manhole and plate, so that the wheel within can be'inspected or repaired.'

If it is desired to run the vessel under canvas'to economize steam, open the man-hole andremove as many of the buckets as occupy the space below the horizontal part of D; cause the wheel to revolve until the `part froln which the buckets have been removed is below. Thus there is exposed to the progress of the vessel only the edges of the rims j'.

Claims.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The wheel consisting of the disk B, with the projections d and buckets Z attached thereto, operating in` the circular hollow water-tightcompartment I); substantially as and for the uses and purposes hercin described and shown.

2. The hollow water-tight compartment D, in conlbination with the wheel, consisting of the disk D, with the projections d and buckets Z, substantially las and for the uses and pnl-poses herein described and specified.

3. The arrangement and combination of the parts herein shown, in relation to each other and to the bottom of the vessel, substantially as herein sllowll anddescribed. l l

v BENJAMIN W. TUCKER. Witnesses v:

'A. GRANT, I. DALFonD.

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